Terahertz Imaging Alignment for Variable Target Positions
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Solution Overview
Problem
Existing terahertz imaging systems face challenges when the positional relationship between the illumination and imaging units is not fixed, leading to inconsistent imaging results due to variable positional relationships between the target area and the imaging system components.
Innovation Solution
An imaging system with a control unit that adjusts the positional relationship between the illumination and imaging devices to satisfy predetermined conditions based on the target area, using terahertz waves for non-destructive object detection, and includes a detection unit to determine the optimal illumination unit for imaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the illumination device and imaging device are not fixed in position, then the system has high adaptability to different imaging scenarios, but the positional relationship between the illumination device and imaging device becomes inconsistent leading to poor imaging quality
Solution Approach 1:
The control device determines the positional relationship between the illumination device and imaging device before imaging occurs, and pre-adjusts their relative positions to satisfy predetermined conditions. This preliminary adjustment ensures that even when devices are movable, they will be in the correct positional relationship when imaging takes place, thereby maintaining imaging quality consistency across different scenarios.
Solution Approach 2:
The system determines the actual positional relationship between the illumination device and imaging device, compares it with the predetermined optimal relationship, and adjusts the devices accordingly. This feedback mechanism ensures that the positional relationship consistently meets required conditions, resolving the inconsistency problem while preserving adaptability.
2Area of stationary object
If multiple illumination devices are used to cover different target areas, then the imaging coverage is improved, but the power consumption increases
Solution Approach 1:
The control device determines which specific illumination device should be used based on the positional relationship between each illumination device, the imaging device, and the target area. Only the illumination device that satisfies the predetermined positional conditions relative to the current target area is activated, ensuring that illumination is provided locally where needed rather than activating all illumination devices unnecessarily, thus reducing power consumption while maintaining adequate coverage.
Solution Approach 2:
Instead of activating all illumination devices simultaneously, the system activates only the necessary portion (one or specific illumination devices) based on the current imaging requirements and positional relationships. This partial action approach provides sufficient illumination coverage for the current target area without the excessive power consumption of activating all devices.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Ensures consistent and effective imaging by aligning the illumination and imaging units with the target area, enhancing the detection of concealed objects and reducing power consumption by optimizing illumination unit usage.
Implementation Method 1
an illumination device that emits terahertz waves
Implementation Method 2
the terahertz waves reflected by the subject are detected by a terahertz camera
Data Source
AI summary
An imaging system includes an illumination device that emits terahertz waves, an imaging device that images a subject irradiated with the terahertz waves, at least one memory storing instructions, and at least one processor that, upon execution of the stored instructions cause the imaging system apparatus to function as: a control unit that controls the illumination device or the imaging device such that a positional relationship between the illumination device that irradiates a target area to be imaged by the imaging device and the imaging device that images the target area satisfies a predetermined condition, depending on a positional relationship between the target area and the imaging device.